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I would replace the thermostat, it's a cheap part and could explain the overheating, also is your fan running? If it won;t kick on then there is the overheating prob. Might just be a relay or fuse. You might be blowing fuses because of a short in the heater control pannel. I had to replace it on my 94. It cost about $30 dollars from the junk yard and solved my problems. I would start with these few simple fixes. Hope they help, if not, take it to a garage that offers free estimates, then fix the problems they find. I do that sometimes also. Replace the Thermostat.

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โˆ™ 2005-10-30 20:11:21
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Q: Why do you keep blowing fuses for your heater on your 1991 cavalier you have no heat and no blower and the car overheats after about a half an hour?
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